The Eruption of Krakatoa, and Subsequent Phenomena: Report of the Krakatoa Committee of the Royal Society (London: Printed by Harrison and Sons, and Published by Trubner and Co., 1888), by Royal Society Krakatoa Committee, ed. by G. J. Symons

Ten Years of Japanese Burrowing in the Netherlands East Indies: Official Report of the Netherlands East Indies Government on Japanese Subversive Activities in the Archipelago During the Last Decade (New York: Netherlands Information Bureau, ca. 1942)